Find all real zeros of 4x^4-x^3+5x^2-2x-6

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2 Answers

This can be factored as (x-1)(4x+3)(x^2+2)

we can take the first two terms, set them to 0 and solve them for x to find the real roots.

x-1=0

add 1

x=1

4x+3=0

subtract 3

4x=-3

divide by 4

x=-3/4
by Level 4 User (5.3k points)
x^4+x^3-8x^2-9x-9
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